I had some reservations about the virtual learning environment. I am glad to say I found this experience, possibly because of Zach's pace, and teaching style actually more desir...

Thank you for your patience and your expert knowledge in explaining everything. I will definitely need to go back to the slide decks and videos for reviews as this is fairly ne...

Zach went above and beyond my expectations of an instructor. He demonstrated a concrete understanding of the material and was able to pass that knowledge back to us in an entert...

I don't usually work with SIP stuff, but I have been in a couple of SIP trainings before. This training from Zack is the best training I've been on and was able to grasp as muc...

Class was very enjoyable, Zach’s on the fly examples when answering questions truly demonstrates he knows the material and is more than just an instructor. He clearly enjoys sh...

I would like to take the opportunity to thank the instructor "Zach", he was great teacher, and I really loved the way he explained the subjects. Thank you very much, and I would...

Instructor Stuart Fesser presented a well balanced and informative course. Stuart showed environments that pertain to my work environment and hints for troubleshooting. Great co...

Stu really made the training easy to understand and enjoyable. Really able to grasp SIP with a much better understanding.